POPSRACER:
No problem man. I guess you just where that 1-2% range that could not solve the problem. Graphite has always been a consern for glitching for any car...
U have heard all the tips im sure so i wont repeat the 100s of suggestions that you have already heard.
On my pro2 i mounted my futaba receiver on its side on the upper deck. And was glitch free for the years i ran the car..
Oh well wish you and all the best for the PRO4